I’m familiar with the knock on Spanish guns of a certain era. In particular the “not properly treated metal” problem. But I don’t really know the dates or period of time where those problems occurred.

So my question is, when did the Spanish makers get their crap together and start hardening their metal components properl? When did they put that problem behind them?

The world cries out for such: he is needed & needed badly- the man who can carry a message to Garcia